- Rigid chassis
- WhichTractor size: Utility
- No lab test on file
- 1972–1977
- 8,031 built
WhichTractor size, not the maker’s category
Derived by WhichTractor from a sourced three-point linkage. How we decide what a machine is
Renault 421 specs: hp, weight, years
MWM D 327-3 three-cylinder diesel. The manufacturer claimed 41.4 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
41.4 hp
30.9 kW as stated by the source
No lab test on file
Claimed · standard not stated by the source
Source · Traktorenlexikon, “Renault 421 R7431”, claimed
This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.
- Weight
- 4,817 lb
- 3-point lift
- 4,497 lb
- Hyd. flow
- 6.8 gpm
- Top speed
- 15.5 mph
Renault 421 specs: key facts
The Renault 421 was built from 1972 to 1977.
The Renault 421 has a claimed engine power (gross or net not stated) of 30.9 kW (41.4 hp); it has no measured PTO figure.
The Renault 421 is two-wheel drive (2WD).
The Renault 421 has a MWM D 327-3 engine, a 3-cylinder 2.83 L diesel unit.Source 2
The Renault 421 weighs 2,185 kg (4,817 lb) unladen.
The Renault 421 has an independent rear PTO running at 540 rpm.
The three-point hitch of the Renault 421 lifts 2,040 kg (4,497 lb) at the lower-link ends.
The hydraulic pump of the Renault 421 delivers 25.9 L/min (6.8 gpm).
Source · Traktorenlexikon, “Renault 421 R7431”
How does the 421 compare with its class?
- Strength:
A three-point lift at the lower links of 2,040 kg is high for its class — 43% above the median of 1,427 kg across the 140 machines within 10% of its power that hold this figure.
Derived by WhichTractor from 246 comparable records. How we work this out
How much horsepower does a 421 have?
The only figure for the 421 is 41.4 hp (30.9 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “Renault 421 R7431”
What engine is in a 421?
A 421 has an MWM D 327-3, a 3-cylinder 2.83 L diesel engine.
| Make & model | MWM D 327-3Source 2 |
|---|---|
| Cylinders | 3, air-cooledSource 2 |
| Displacement | 172.5 ci · 2.83 LSource 2 |
| Max torque | 127 lb·ft · 172 N·m @ 1,500 rpm |
| Injection | Direct injection method |
| Electrical system | 12 V |
Source · Traktorenlexikon, “Renault 421 R7431”
How much will a 421 lift, and what is its hydraulic flow?
A 421 lifts 4,497 lb (2,040 kg) at the lower-link ends of its Category 1 three-point hitch.
| Pump flow | 6.8 gpm · 25.9 L/min |
|---|---|
| Hitch category | Category 1 |
| Lift at ends | 4,497 lb · 2,040 kg |
| Rear PTO | Independent, engine-driven, 540 rpm @ 1,581 engine rpm |
Source · Traktorenlexikon, “Renault 421 R7431”
What transmission does a 421 have?
Transmission specifications for the 421 are below.
| Clutch | Dry VERTO double clutch |
|---|---|
| Brakes | Pedal-operated GIRLING disc brake acting on half-axles, designed as individual wheel brake |
| Steering | Mechanical GEMMER steering, type 65 |
| Top speed | 15.5 mph · 25 km/h |
Source · Traktorenlexikon, “Renault 421 R7431”
How much does a 421 weigh?
A 421 weighs 4,817 lb (2,185 kg) unladen.
| Unladen weight | 4,817 lb · 2,185 kg |
|---|---|
| Wheelbase | 78.0 in · 1,982 mm |
| Length | 130.4 in · 3,312 mm |
| Width | 66.1–83.9 in · 1,680–2,130 mm |
| Height | 93.3 in · 2,370 mm |
| Ground clearance | 15.7 in · 400 mm |
| Front track | 47.2–74.8 in · 1,200–1,900 mm |
| Rear track | 51.2–70.9 in · 1,300–1,800 mm |
| Turning radius, braked | 10.9 ft · 3.31 m |
Source · Traktorenlexikon, “Renault 421 R7431”
What oil does a 421 take, and how much?
A 421 engine takes 8.7 qt (8.25 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.
| System | Capacity |
|---|---|
| Engine oil | 8.7 qt · 8.25 LSource: Traktorenlexikon, “Renault 421 R7431” · single source, not independently verified |
| Transmission & hydraulic | 28.0 qt · 26.5 LSource: Traktorenlexikon, “Renault 421 R7431” · single source, not independently verified |
Always confirm against the operator’s manual for your machine before service.
Which tractors compare with a 421?
Within 10% of its 41.4 hp of claimed engine power, the same type, and first built within 15 years of it.
- Renault 45641.4 hp engine, claimed · 1968–1972Side by side with the 421 →
- Renault 5141.4 hp engine, claimed · 1968–1972Side by side with the 421 →
- Renault R-5641.4 hp engine, claimed · 1967–1973Side by side with the 421 →
- UTB U-46041.4 hp engine, claimed · 1977–1991Side by side with the 421 →
- Fiat 420 (DT)41.4 hp engine, claimed · 1978–1985Side by side with the 421 →
- SOMECA 420 (TD)41.4 hp engine, claimed · 1978–1985Side by side with the 421 →
Common questions about the Renault 421
Is a 421 two-wheel drive or four-wheel drive?
The Renault 421 is two-wheel drive (2WD).
What PTO does a 421 have?
A 421 has a independent 540 rpm rear PTO.
Sources and how this page was built
Compiled from Traktorenlexikon, “Renault 421 R7431”; and Traktorenlexikon, “Renault 461 R7441”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: Renault 421 R7431 — CC BY-SA 4.0, WIKIBOOKS-TL-109199 · revision 993344. Wikibooks contributors (Traktorenlexikon). Original document
- Traktorenlexikon: Renault 461 R7441 — CC BY-SA 4.0, WIKIBOOKS-TL-84546 · revision 1018674. Wikibooks contributors (Traktorenlexikon). Original document